A 26-inch wheel refers to the diameter of the wheel, commonly used in bicycles. This size is popular for mountain bikes and some hybrid bikes, providing a balance between speed and stability. The larger diameter allows for better rolling over obstacles, making it suitable for off-road terrain. In comparison to other wheel sizes, such as 27.5-inch wheels or 29-inch wheels, 26-inch wheels are generally lighter and more maneuverable. However, they may not offer the same level of speed or efficiency on smooth surfaces. Riders often choose this size based on their specific riding style and preferences.